electrophysiology, the threshold potential is the critical level to which a membrane potential must be depolarized to initiate an action potential. In neuroscience...
22 KB (2,818 words) - 03:44, 15 November 2024
(increases in voltage) to the threshold potential of -40 mV, upon which the cell would go on to fire the next action potential. The rate of depolarization...
9 KB (1,167 words) - 23:37, 23 March 2025
postsynaptic potentials (EPSPs). Depolarizing local potentials sum together, and if the voltage reaches the threshold potential, an action potential occurs...
6 KB (736 words) - 20:34, 27 May 2025
membrane potential to depolarize +40mV (100 x 0.4mV = 40mV) from -100mV to -60mV where it reaches threshold. Once the membrane potential reaches threshold, an...
21 KB (2,781 words) - 23:59, 22 February 2025
Artificial neuron (redirect from Threshold Logic Unit)
often added to a term known as a bias (loosely corresponding to the threshold potential), before being passed through a nonlinear function known as an activation...
31 KB (3,602 words) - 19:04, 23 May 2025
depolarize—the membrane potential must reach a voltage threshold more positive than the resting membrane potential. Therefore, hyperpolarisation of the postsynaptic...
22 KB (2,705 words) - 04:12, 7 February 2025
threshold potential) or until it is depolarized by another action potential, coming from a neighboring cell.[citation needed] The pacemaker potential...
46 KB (5,450 words) - 17:12, 26 May 2025
the threshold potential. At the axon hillock of a typical neuron, the resting potential is around −70 millivolts (mV) and the threshold potential is around...
149 KB (16,451 words) - 05:32, 8 May 2025
Action potential Aerobic threshold Anaerobic threshold Dark adaptation threshold Epidemic threshold Flicker fusion threshold Masking threshold Odor detection...
4 KB (451 words) - 07:47, 15 March 2025
action potentials. However, all action potentials are begun by electrotonic potentials depolarizing the membrane above the threshold potential which converts...
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from a neuron's resting membrane potential towards its threshold potential, increases the likelihood of an action potential and normally occurs with the influx...
22 KB (2,547 words) - 13:04, 6 August 2024
enzymes or presynaptic reuptake. In response to a threshold action potential or graded electrical potential, a neurotransmitter is released at the presynaptic...
23 KB (2,723 words) - 22:55, 26 May 2025
motility. In the human enteric nervous system, the slow-wave threshold is the slow-wave potential which must be reached before a slow wave can be propagated...
10 KB (1,147 words) - 06:50, 16 February 2025
gluconate) increases threshold potential through a mechanism that is still unclear, thus restoring normal gradient between threshold potential and resting membrane...
49 KB (5,055 words) - 06:45, 20 April 2025
as the pacemaker potential. Once the pacemaker potential reaches a set value, the threshold potential, it produces an action potential. Other cells within...
24 KB (2,810 words) - 17:18, 26 May 2025
of membrane potential. That is, the maximum diastolic potential is less negative and therefore exists closer to the threshold potential. Cellular depolarisation...
31 KB (3,537 words) - 20:03, 25 May 2025
the fixed threshold, v t h 0 {\displaystyle v_{th0}} , after every spike, causing an adaptation of the threshold. The threshold potential, v t h {\displaystyle...
115 KB (14,910 words) - 17:56, 22 May 2025
2 ϕ F {\displaystyle 2\phi _{F}} is the surface potential, V T O {\displaystyle V_{TO}} is threshold voltage for zero substrate bias, γ = ( t o x / ϵ...
13 KB (1,738 words) - 08:37, 24 December 2024
Excitatory post-synaptic potentials (EPSPs) depolarize the membrane and move the potential closer to the threshold for an action potential to be generated. Inhibitory...
11 KB (1,541 words) - 09:24, 18 September 2023
potential is the slow depolarization because of sodium influx, and once threshold has been reached the continued depolarization due to calcium influx. Repolarization...
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occur. At this stage, end-plate potentials (EPPs) can still be detected, but are too small to reach the threshold potential needed for activation of muscle...
60 KB (6,872 words) - 07:06, 6 February 2025
membrane potential oscillations are membrane oscillations that do not directly trigger an action potential since they do not reach the necessary threshold for...
21 KB (2,510 words) - 19:06, 23 May 2025
individual inputs, summation may or may not reach the threshold voltage to trigger an action potential. Neurotransmitters released from the terminals of a...
19 KB (2,354 words) - 19:18, 21 May 2025
and other factors act on the resting potential and bring it closer to the threshold potential, an action potential is more easily and rapidly obtained...
7 KB (793 words) - 21:35, 24 July 2024
reversal potential below threshold, such as a typical K+ current, is considered inhibitory. A current with a reversal potential above the resting potential, but...
65 KB (8,286 words) - 04:08, 29 May 2025
The poverty threshold, poverty limit, poverty line, or breadline is the minimum level of income deemed adequate in a particular country. The poverty line...
62 KB (7,167 words) - 07:36, 9 May 2025
Depolarization (section Resting potential)
If the sum of the stimuli reaches a certain voltage, known as the threshold potential, depolarization continues from the axon hillock down the axon. The...
20 KB (2,406 words) - 05:35, 9 April 2025
bring the membrane potential of the sensory receptor towards the threshold for triggering an action potential. Receptor potential can work to trigger...
3 KB (366 words) - 05:24, 4 April 2023
a clinically significant decrease in work rate at the anaerobic threshold. Potential causes include mitochondrial dysfunction, and issues with the transport...
110 KB (11,436 words) - 12:49, 28 May 2025
Sputtering (section Potential sputtering)
physical sputtering threshold. Potential sputtering has only been observed for certain target species and requires a minimum potential energy. Removing atoms...
27 KB (3,315 words) - 15:51, 5 January 2025